
Miiyu
Plain Microfibre Boyshort Recycled Nylon
This plain microfibre boyshort is a high-rise, full-coverage panty from the Miiyu by Simons line, designed exclusively in Canada. It is made from soft, stretch recycled nylon microfibre with a stretch waistband, elasticized leg openings, and a reinforced gusset for comfortable everyday wear. The smooth, matte-finish fabric in a pale blue shade offers a simple, versatile base layer.
- Material
- Recycled Nylon
- Gender
- female
- Style
- casual, loungewear
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Specifications
Soft and stretchy recycled nylon boyshorts with a comfortable waistband.
Stretch recycled nylon microfibre, elastic waistband
- Material
- Recycled Nylon
- Style
- casual, loungewear
- Occasion
- everyday
- Gender
- female
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing > Underwear & Socks > Underwear
Additional Attributes
- soft and stretchy microfibre fabric
- recycled nylon material
- elastic stretch waistband
- boyshort silhouette
- plain solid color
- exclusive Canadian design
Product Insights
This Miiyu boyshort offers full coverage and a no-elastic leg design that prevents wedgies and visible lines, with a true-to-size fit and stretch waistband that stays in place. However, the thin recycled microfibre may appear sheer under light clothing, the color selection is limited to five pastel shades deemed unattractive and lacks black or white, medium sizes are often out of stock, and the $12.99 per pair or ~$8/pair in a 5-pack is significantly higher than mass-market alternatives (~$4.80/pair), with the fabric being thinner than expected for the bundle price.
Verified claims
- No-elastic leg design
- Buyers report the leg openings have no elastic, which helps prevent wedgies.
- Fit
- Buyers say true-to-size fit, stretch waistband, and full coverage keep the underwear in place.
- Care
- Cold wash and line drying preserve the recycled nylon's elasticity for lasting stay-put performance.
- Thinness
- Buyers describe the microfibre as thin but very stretchy and comfortable.
- Color selection
- Five pastel options; no black/white; colors called unattractive.
- Sizing accuracy
- Buyers report medium fits US 8-10 accurately.
- Stock availability
- Buyers report some sizes are hard to find online and in-store, with an XL shopper unable to locate her size.
- Bundle value
- $12.99/pair or ~$8/pair in the 5-pack, but mass-market competitors sell for ~$4.80/pair.
- Provenance
- Miiyu is a Simons-exclusive brand designed in Canada.
- Fabric
- Buyers report the recycled nylon fabric is thin, with some describing it as very thin or poor quality.
- Coverage
- Full coverage prevents riding up, ideal for lounging or under skirts.
- Competitive value
- 5-pack ~$8 CAD/pair vs Walmart ~$3.50 USD/pair; offset by design and color options.
- Material
- Thin recycled microfibre body; 100% cotton gusset for breathability.
- Breathability
- The recycled nylon microfibre stays breathable and dry against the skin when fabric softener is skipped, so the boyshorts avoid trapping sweat and keep a light, airy feel.
Product record
- Title
- Plain Microfibre Boyshort Recycled Nylon
- Brand
- Miiyu
- Price
- 12.99 CAD
- Availability
- In stock
Image Analysis
2 images- 01

Product
Flat-lay front view of a single high-rise boyshort panty in a uniform pale blue microfibre fabric; visible elasticized leg and waist openings and a reinforced central gusset panel with topstitching.
- SilhouetteHigh-rise boyshort silhouette with a straight high waistline and full coverage rear area visible from the front; leg openings are low-cut curves toward the hips.
1 region
x 0.06 · y 0.18 · w 0.88 · h 0.62 (high) - Material appearanceSmooth, slightly shiny microfibre fabric with a uniform fine texture and no visible pattern.
1 region
x 0.14 · y 0.22 · w 0.72 · h 0.48 (medium) - Waist finishingNarrow elasticized waist hem with a single line of visible topstitching along the top edge.
1 region
x 0.09 · y 0.19 · w 0.82 · h 0.06 (high) - Leg openings and trimLeg openings finished with narrow elasticized hems and visible topstitching that follows the curved openings.
1 region
x 0.08 · y 0.62 · w 0.84 · h 0.28 (high) - Gusset panelCentral lower gusset panel with contoured seam lines and double topstitch reinforcement visible at the front center.
1 region
x 0.38 · y 0.62 · w 0.24 · h 0.18 (high) - Seam constructionVisible overlock or coverstitch seams along side seams and panel joins with matching thread color.
1 region
x 0.07 · y 0.28 · w 0.86 · h 0.46 (medium)
Other
Studio flat-lay product photo on a neutral light gray background with even diffuse lighting and a soft shadow beneath the product; image is centered and cropped to show the entire garment.
- Shot compositionTop-down flat-lay composition with the product centered and occupying the middle third of the frame.
- BackgroundUniform light gray background with no props or packaging visible.
- Lighting and shadowEven, diffuse studio lighting with a faint soft shadow under the lower edge of the garment.
Colors
pale baby blue· main body#A4C5FC- SilhouetteHigh-rise boyshort silhouette with a straight high waistline and full coverage rear area visible from the front; leg openings are low-cut curves toward the hips.
- 02

Product
Flat-laid high-rise boyshort with continuous single-panel front, smooth microfibre surface, finished with narrow stitched elastic at waistband and leg openings, shown from the front or rear on a neutral background.
- Main body shapeRectangular high-rise boyshort silhouette with a straight waistband and gently curved leg openings forming a full-coverage brief shape.
1 region
x 0.06 · y 0.15 · w 0.88 · h 0.62 (high) - Fabric appearanceSmooth, fine-grain microfibre surface with a uniform matte finish and no visible print or pattern.
1 region
x 0.12 · y 0.22 · w 0.76 · h 0.52 (high) - Waistband finishNarrow folded and stitched waistband with visible straight topstitching along the upper edge.
1 region
x 0.06 · y 0.15 · w 0.88 · h 0.06 (high) - Leg opening finishNarrow turned hem with visible single-line stitching following the curved leg edges on both sides.
2 regions
x 0.06 · y 0.70 · w 0.36 · h 0.18 (high); x 0.58 · y 0.70 · w 0.36 · h 0.18 (high) - Crotch seam detailSmall rectangular reinforced crotch seam panel visible at the center bottom edge with a short vertical seam connecting to the main body.
1 region
x 0.44 · y 0.78 · w 0.12 · h 0.08 (high)
Other
Studio flat-lay on a neutral light-gray background with even diffuse lighting and a soft drop shadow beneath the garment; image is centered and cropped with minimal margins.
- Shot compositionGarment laid flat, centered in frame, photographed from above with full view of the front-facing panel.
- Background and shadowUniform light-gray background with a subtle soft shadow directly below the lower edge of the boyshort indicating a slight separation from the surface.
1 region
x 0.10 · y 0.80 · w 0.80 · h 0.15 (medium) - LightingEven diffuse lighting producing minimal specular highlights and consistent color across the fabric.
Colors
pale periwinkle blue· main fabric#B3CEFC- Main body shapeRectangular high-rise boyshort silhouette with a straight waistband and gently curved leg openings forming a full-coverage brief shape.
Variants
25 SKUs| SKU | Title | Price | Avail |
|---|---|---|---|
| 4594534 | Plain Microfibre Boyshort Recycled Nylon - Mint/pistachio Green - X-Small | CA$12.99 | Yes |
| 4594535 | Plain Microfibre Boyshort Recycled Nylon - Mint/pistachio Green - Small | CA$12.99 | Yes |
| 4594536 | Plain Microfibre Boyshort Recycled Nylon - Mint/pistachio Green - Medium | CA$12.99 | Yes |
| 4594537 | Plain Microfibre Boyshort Recycled Nylon - Mint/pistachio Green - Large | CA$12.99 | Yes |
| 4594538 | Plain Microfibre Boyshort Recycled Nylon - Mint/pistachio Green - X-Large | CA$12.99 | Yes |
| 4594539 | Plain Microfibre Boyshort Recycled Nylon - Blue - X-Small | CA$12.99 | Yes |
| 4594540 | Plain Microfibre Boyshort Recycled Nylon - Blue - Small | CA$12.99 | Yes |
| 4594541 | Plain Microfibre Boyshort Recycled Nylon - Blue - Medium | CA$12.99 | Yes |
| 4594542 | Plain Microfibre Boyshort Recycled Nylon - Blue - Large | CA$12.99 | Yes |
| 4594543 | Plain Microfibre Boyshort Recycled Nylon - Blue - X-Large | CA$12.99 | Yes |
| 4594544 | Plain Microfibre Boyshort Recycled Nylon - Indigo/dark Blue - X-Small | CA$12.99 | Yes |
| 4594545 | Plain Microfibre Boyshort Recycled Nylon - Indigo/dark Blue - Small | CA$12.99 | Yes |
| 4594546 | Plain Microfibre Boyshort Recycled Nylon - Indigo/dark Blue - Medium | CA$12.99 | Yes |
| 4594547 | Plain Microfibre Boyshort Recycled Nylon - Indigo/dark Blue - Large | CA$12.99 | Yes |
| 4594548 | Plain Microfibre Boyshort Recycled Nylon - Indigo/dark Blue - X-Large | CA$12.99 | Yes |
| 4594549 | Plain Microfibre Boyshort Recycled Nylon - Lilacs - X-Small | CA$12.99 | Yes |
| 4594550 | Plain Microfibre Boyshort Recycled Nylon - Lilacs - Small | CA$12.99 | Yes |
| 4594551 | Plain Microfibre Boyshort Recycled Nylon - Lilacs - Medium | CA$12.99 | Yes |
| 4594552 | Plain Microfibre Boyshort Recycled Nylon - Lilacs - Large | CA$12.99 | Yes |
| 4594553 | Plain Microfibre Boyshort Recycled Nylon - Lilacs - X-Large | CA$12.99 | Yes |
| 4594554 | Plain Microfibre Boyshort Recycled Nylon - Peach - X-Small | CA$12.99 | Yes |
| 4594555 | Plain Microfibre Boyshort Recycled Nylon - Peach - Small | CA$12.99 | Yes |
| 4594556 | Plain Microfibre Boyshort Recycled Nylon - Peach - Medium | CA$12.99 | Yes |
| 4594557 | Plain Microfibre Boyshort Recycled Nylon - Peach - Large | CA$12.99 | Yes |
| 4594558 | Plain Microfibre Boyshort Recycled Nylon - Peach - X-Large | CA$12.99 | Yes |
Documents & Data
Customer Reviews
10 total10 reviews · out of 5
Super comfy boy short
Great shape and stretch, and live the rust color. I’m an 8-10 US and medium fits great.
Confort absolu
Vraiment parfait sous un jeans.
J’adorerais
Dommage qu'il n'y a pas de blanc et de noir
Polyamide elastane search
I prefer polyamide elastane for my underwear but am conscious of the environmental impact. So recycled nylon is a happy halfway house. I have tried Tencel but it does not hold its shape. I will always come back to Simon’s
Pauvre qualité
Tissu très mince.
Confortable
Le tissu un peu mince mais très élastique et confortable.
Très confortable
Très confortables et tiennes bien en place. Par contre je trouve que le choix de couleur est un peu moche.
Douce et confortable
Je les adore! J’aimerais plus de couleurs :)
The best
I finally found a nice pair of underwear that doesn’t go up my butt! Thank-you Simons!
Loved these but discontinued??
The comfort and fit is great. I like that there is no elastic at the top of the leg -- but then, wanting more, I couldn't find them in the store -- or on-line in my size. Have you discontinued the XL size?